Roleset prohibit.01 Verbnet Class: NONE "prevent an action":

Roles:

Arg0:Agent


Arg1:Theme (action or object being prevented)


Arg2:secondary predication or action


Arg3:instrument

Examples:

typical usage (-)
Gulf Power had been under investigation for violating the Utility Holding Company Act, which *trace* prohibits public utilities from making political contributions.
Arg0:	*trace* -> which -> the Utility Holding Company Act
REL:	prohibits
Arg1:	public utilities
Arg2-from:	making political contributions




just transitive (-)
John's criminal record prohibits his getting a productive job, so he works on the PAS project.
Arg0:	John's criminal record
REL:	prevents
Arg1:	his getting a productive job




with instrument (-)
Mary prohibits John from getting a decent night's sleep with her relentless nagging.
Arg0:	Mary
REL:	prohibits
Arg1:	John
Arg2-from:	getting a decent night's sleep
Arg3-with:	her relentless nagging.

OK, that last usage is a little odd. In general, though, avoid using the 'instrumental' unless there's some prohibitor separate from the agent.